Ball massage stick



FIG. 1 is a front perspective view of a ball massage stick showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG, 5 is a left side elevational view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top plan view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the ball massage stick, which form no part of the claimed design. 

CLAIM The ornamental design for a ball massage stick, as shown and described. 